<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script>
        console.log(-7 % 3);
        var a = '100';
        var b = 100;
        console.log("hello");
        console.log( a == b); // 值比较
        console.log( a === b); //值、类型比较
        console.log(100=='100')
        console.log(true && false);
        console.log(1>=0 || 1<2);
        console.log(30!=1)
        console.log(a+="str");
        console.log(100**10)
        console.log("字符串和bool"+(100==2)) //运算符优先级问题 逻辑运算符没有+优先级高
        console.log(10>3?'lin':'lee');
        console.log(document instanceof Object);
        console.log(typeof document);
    </script>
</head>

<body>

</body>

</html>